A New Notation for Interactive Systems

Abstract

We describe a new notation for interactive systems. It is based on links between the nodes that represent the various affordances available to the user of an interactive system. Like any notation its main benefit may be that of facilitating communication between the customer who commissions the system, the interaction designer and the implementer. The origin of the new notation was a proposed representation of an app designed to support a person with Type-1 diabetes in the management of their condition, and the use of that representation to investigate navigational transitions carried out by the user. Potential generalization of the notation, as well as its benefits and weaknesses, are being investigated.